12.6. Transaction exception handling
In this section, we describe how exceptions are handled with transactions.
12.6.1. The preliminaries
What are the types of exceptions available?
An exception is unchecked if it extends RuntimeException or Error. Unchecked exceptions do not need to be specified in the throws clause of a method.
An exception is checked if it is specified in the throws clause of a method.
An application level exception is an exception that is checked and extends Exception. It cannot extend RuntimeException, Error, or RemoteException. CreateException, RemoveException and FinderException are application exceptions.
A system level exception is any exception other than an application level exception; it includes all unchecked exceptions. ...
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